1 files changed, 143 insertions, 0 deletions
diff --git a/backends/platform/PalmOS/Src/os5_sound.cpp b/backends/platform/PalmOS/Src/os5_sound.cpp
new file mode 100644
index 0000000000..4bdded13e7
--- /dev/null
+++ b/backends/platform/PalmOS/Src/os5_sound.cpp
@@ -0,0 +1,143 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2001  Ludvig Strigeus
+ * Copyright (C) 2001-2006 The ScummVM project
+ * Copyright (C) 2002-2006 Chris Apers - PalmOS Backend
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+#include "be_os5.h"
+#include "backends/intern.h"
+#include "common/config-manager.h"
+
+SoundExType _soundEx;
+
+static Err sndCallback(void* UserDataP, SndStreamRef stream, void* bufferP, UInt32 *bufferSizeP) {
+	SoundExType *_soundEx = (SoundExType *)UserDataP;
+	SoundType *_sound = _soundEx->sound;
+	
+	if (_soundEx->set && _soundEx->size) {
+		MemMove(bufferP, _soundEx->dataP, _soundEx->size);
+		*bufferSizeP = _soundEx->size;
+		_soundEx->set = false;
+
+	} else {
+		_soundEx->size = *bufferSizeP;
+		MemSet(bufferP, 128, 0);
+		*bufferSizeP = 128;
+	}
+	
+	return errNone;
+}
+
+void OSystem_PalmOS5::sound_handler() {
+	if (_sound.active) {
+		if (_soundEx.size && !_soundEx.set) {
+			if (!_soundEx.dataP)
+				_soundEx.dataP = MemPtrNew(_soundEx.size);
+
+			((SoundProc)_sound.proc)(_sound.param, (byte *)_soundEx.dataP, _soundEx.size);
+			_soundEx.set = true;
+		}
+	}// TODO : no Sound API case
+}
+
+SndStreamVariableBufferCallback OSystem_PalmOS5::sound_callback() {
+	return sndCallback;
+}
+
+bool OSystem_PalmOS5::setSoundCallback(SoundProc proc, void *param) {
+	Err e;
+	Boolean success = false;
+
+	if (!_sound.active) {
+		if (gVars->fmQuality != FM_QUALITY_INI) {
+			ConfMan.setBool("FM_medium_quality", (gVars->fmQuality == FM_QUALITY_MED));
+			ConfMan.setBool("FM_high_quality", (gVars->fmQuality == FM_QUALITY_HI));
+		}
+
+#if defined (COMPILE_OS5)
+		CALLBACK_INIT(_soundEx);
+#endif
+		_sound.proc = proc;
+		_sound.param = param;
+		_sound.active = true;	// always true when we call this function, false when sound is off
+
+		_soundEx.handle = 0;
+		_soundEx.size = 0;		// set by the callback
+		_soundEx.set = false;
+		_soundEx.dataP = NULL;	// set by the handler
+
+		if (ConfMan.hasKey("output_rate"))
+			_samplesPerSec = ConfMan.getInt("output_rate");
+		else
+			_samplesPerSec = SAMPLES_PER_SEC;
+
+		// try to create sound stream
+		if (OPTIONS_TST(kOptPalmSoundAPI)) {
+			e = SndStreamCreateExtended(
+						&_soundEx.handle,
+						sndOutput,
+						sndFormatPCM,
+						_samplesPerSec,
+#ifdef PALMOS_68K
+						sndInt16Big,
+#else
+						sndInt16Little,
+#endif
+						sndStereo,
+						sound_callback(),
+						&_soundEx,
+						8192
+#ifdef PALMOS_68K
+						,false
+#elif defined (COMPILE_OS5)
+						,true
+#endif
+						);
+
+			e = e ? e : SndStreamStart(_soundEx.handle);
+			e = e ? e :	SndStreamSetVolume(_soundEx.handle, 1024L * gVars->palmVolume / 100);
+			success = (e == errNone);
+
+		// no Sound API
+		} else {
+			_soundEx.size = 512;
+			_soundEx.dataP = MemPtrNew(_soundEx.size);
+		}
+	}
+	// if not true some scenes (indy3 256,...) may freeze (ESC to skip)
+	return true;
+}
+
+void OSystem_PalmOS5::clearSoundCallback() {
+	if (_sound.active) {
+		if (OPTIONS_TST(kOptPalmSoundAPI)) {
+			SndStreamStop(_soundEx.handle);
+			SndStreamDelete(_soundEx.handle);
+		}
+
+		if (_soundEx.dataP)
+			free(_soundEx.dataP);
+	}
+
+	_sound.active = false;
+	_soundEx.handle = NULL;
+	_soundEx.dataP = NULL;
+}